Bump aiohttp in /ai/gen-ai-agents/custom-rag-agent

---
updated-dependencies:
- dependency-name: aiohttp
  dependency-version: 3.12.14
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

ai/gen-ai-agents/custom-rag-agent/requirements.txt

@@ -1,6 +1,6 @@
 aiofiles==24.1.0
 aiohappyeyeballs==2.4.8
-aiohttp==3.11.13
+aiohttp==3.12.14
 aiosignal==1.3.2
 altair==5.5.0
 annotated-types==0.7.0